CN102444474A - Method for sealing aircraft engine with oil by using special oil sealing machine - Google Patents
Method for sealing aircraft engine with oil by using special oil sealing machine Download PDFInfo
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Abstract
The invention discloses a method for sealing an aircraft engine with oil by using a special oil sealing machine. An AN-9 aircraft engine is detached onto a ground rack for performing offline oil sealing. The method comprises the following steps of: detaching a fuel oil filter of the engine, cleaning, and arranging at the original position; filling fresh lubricating oil into an oil tank of the special oil sealing machine, and heating the lubricating oil to 40-50 DEG C; connecting an oil conveying hose of the oil sealing machine to an oil sealing nozzle of a fuel oil system of the engine, turning off a fuel shut-off valve, switching on auxiliary equipment and a fuel oil pump adjustor of the engine, and exhausting air; switching on the special oil sealing machine for supplying lubricating oil to the engine and making the lubricating oil flow through the auxiliary equipment till lubricating oil pressure occurs; switching off an air bleeding device and falsely starting the engine twice at the time interval of more than three minutes; and disconnecting the oil conveying hose of the oil sealing machine from an oil sealing mouthpiece, and draining lubricating oil from a lubricating oil tank of the engine. The special oil sealing machine is movable, is easy to operate, and is convenient to maintain; and an original installed oil seal is avoided, time and labor are saved, and the maintenance cost is saved greatly.
Description
Technical field
The present invention relates to the maintaining technology of aeroengine, relate in particular to the technology of A И-9 aeroengine oil sealing.
Background technique
A И-9 aeroengine is that Russia is assemblied in the power starting arrangement on card-28 helicopter, and its effect is that the pneumatic starting machine for the helicopter master motor provides the starting source of the gas, and master motor can be started smoothly.A И-9 aeroengine is from Russian import; Its oil sealing mode: the one, on helicopter, directly carry out oil sealing, not dismantle on the ground stand, another kind is that engine stripping is got off; On ground stand to its oil sealing; Therefore first kind of oil sealing mode wanted the life-span of consumption of engine, The present invention be directed to the ground oil sealing of " disembarking ", mainly is simultaneously the oil sealing to engine fuel oil system.
Summary of the invention
The purpose of this invention is to provide the method for a kind of special-purpose oil-sealing device to the aeroengine oil sealing; With special-purpose oil sealing equipment; The cleaning lubricating oil that provides satisfactory pressure and temperature to reach technical requirements by oil-sealing device; Motor false start state is by the enough time of engine running, makes the lubricating oil can be fully that the oil-fired system flushing of pipeline is clean, and realizes oil sealing.Concrete technological scheme is following:
1, engine fuel oil system oil sealing step:
(1) oil of pulling down engine fuel oil system is filtered, and cleans cleaning with clean kerosene, is installed to original position again;
(2) fill with the fuel tank of special-purpose oil-sealing device with new lubricating oil, when ambient temperature was lower than 0 ℃, the lubricating oil of adding should be heated to 40-50 ℃;
(3) be connected to the oil hose of special-purpose oil-sealing device top tank on the engine fuel oil system oil sealing mouth, this oil tank is in the conduit place between fuel shut-off valve and the oil filter;
(4) the affirmation fuel shut-off valve is shut;
(5) in order to deflate, connect supplementary equipment and engine fuel pump governor;
(6) connect the special-purpose oil-sealing device of lubricating oil supply engine, and let it flow through special-purpose supplementary equipment, till lubricating oil pressure occurring;
(7) break off means of deflation;
(8) take down the helicopter flexible pipe after, connect at the Helicopter System air bleed valve on the installation limit of short tube and load onto special-purpose blanking cover, blanking cover is to be equipped with in the helicopter corollary equipment;
(9) motor is carried out false start twice, be not less than 3 minutes each blanking time;
(10) break off the fuel tank of oil-sealing device and oil sealing ozzle, from the motor oil case, emit lubricating oil.
2, the engine oil seal medium adopts domestic HP-8B lubricating oil, and specific requirement is following:
The KOH amount of 1 gram lubricating oil: 4.0-5.5; Setting temperature is not higher than-60 ℃, oil temperature 40-50 ℃; Anhydrous, sour, alkali and mechanical admixture.
3, oil sealing systems technology parameter;
Effect is that the oil system pipeline of aeroengine and oil-fired system pipeline are cleaned and oil sealing; Prevent motor park for a long time with this journey transportation process in the pipeline impurity pile up and corrosion; Can provide temperature, pressure, viscosity, pH value, water content all to meet the requirements; And the oil sealing medium that sufficient flow is arranged, lubricating oil supply pressure: 0.06-0.17Mpa; Fuel supply flow rate:>=1.5L/min; Volume of fuel tank 27L; The lubricating oil trade mark: HP-8B; Lubricating oil granularity≤7 μ m.
4, oil sealing system work process: connect the oil-sealing device on system's general power, the starting oil sources car; Adjustment charge oil pressure and temperature; The oil-sealing device of oil sources car to engine oil, motor false start, engine cut-off, 3 minutes at interval; This moment, oil-sealing device worked on, and motor false start once more, motor stop again, oil sealing is accomplished, interval 2 minutes, parting system general power.
Oil-sealing device can be arranged on the oil sources car, also separablely is dolly independently, and it comprises fuel tank, pipeline road and valve, pressure gauge, oily filter, control system, electrical system, introduces respectively with regard to each several part below.
5, oil sealing horse structure:
Stand is taked fixed is carried out oil sealing on car body, comprises aeroengine, oil supply system, control system, electrical system, vehicle frame platform, five part compositions of Der Motortraeger on the car body; Carrying vehicle adopts four-wheel to support when off working state, and wherein two of fast pulleys, two of deflecting rollers adopt 4 can receive the fixing support rack of stretching and support in working order;
Aeroengine adopts lateral fixation on the car platform, in order to avoid suck the fifth wheel on the oil sources car during engine running, the lubricating oil splash that also can avoid the motor ejection is to oil sources car control cabinet.Oil supply system, control system and electrical system are concentrated and are located in the control cabinet case of special-purpose oil-sealing device.Vehicle frame is with the welding of Q235A trade mark 5# angle steel, and the vehicle frame bottom surface is welded with oil-collecting plate, and oil-collecting plate tilts to the engine centerline direction, and is provided with fuel outlet, reclaims the waste gas lubricating oil to concentrate, and other equipment are installed on the car landing slab.Engine stand is used the 5# channel-section steel with simple and easy engine stand structure on the transport case, and 4#, 5# angle steel are welded.
6, capital equipment is an oil-sealing device on the oil sources car, and it all meets the qualified oil sealing medium of standard, fuel tank, oil feed pump, lubricating oil heater, oil pipe and corresponding various valve, electrical system, control system composition for aeroengine provides temperature, pressure, flow, granularity.Process is made in the oil sources turner: 1. refuel: the cleaning lubricating oil suction hose when system refuels in the oil drum gets into fuel tank through manual ball valve C, 27V direct current oil pump, oil filter, safety overflow valve and pressure regulator valve; This moment, manual ball valve A and manual ball valve B were in closed condition, and solenoid valve is in closes the shape body.2. drain the oil: when draining the oil, open manual ball valve B and can emit lubricating oil.3. oil sealing: open manual ball valve A during oil sealing; Lubricating oil in the fuel tank is through 27V direct current oil pump, twice filtration of oil filter; Get into motor through solenoid valve,, make charge oil pressure keep stable by the charge oil pressure of pressure regulator valve and safety overflow valve regulating system.4. oil circuit caliber: the pipeline external diameter is that 12mm, wall thickness are the Stainless Steel Tube of 1mm behind the pump; The pipeline external diameter is 16mm before the pump, and wall thickness is the Stainless Steel Tube of 1mm.Warp was the 10mm metallic hose in the metallic hose of external motor used.5. the volume of fuel tank of oil-sealing device is 27L, processes 300 * 300 * 300 by the Stainless Steel Alloy material, establishes oil filler, oil outlet, sewage draining exit, relief opening on the fuel tank.Fuel tank is equipped with AC220V/2000W and exchanges heater; Control by special-purpose temp controller; So that when oily temperature is lower than 0 ℃ be oil-sealing device heating lubricating oil; For aeroengine provides the oil sealing medium that is fit to temperature, oil temperature is presented on the control panel with number, on fuel tank, also disposes thermal resistor, liquid level display unit simultaneously.6. oil pump: oil pump is the device that certain pressure and flow oil sealing lubricating oil are provided to motor in the oil-sealing device; Oil pump is divided into three kinds: DC27V direct current oil pump feed, and one of AC220V fuel turn manifold oil pump feed, these three kinds of oil feed pumps of gas-pressurized, the present invention adopts the direct current oil pump feed; The oil pump model is CB-4; Charge oil pressure is 0.12-0.22Mpa, and fuel supply flow rate is 4L/min, the DC27V power supply.7. oil filter: the oil sealing medium must be through filtration treatment before getting into aeroengine; Elimination mechanical admixture wherein and other impurity, granularity is below 10 μ m simultaneously, and the oil filter is divided into thick oil filter and essential oil filter; Two kinds of oil filter collocation are used; Thick oil filter elimination large scale impurity makes filter precision 8 μ m, 10 μ m, and essential oil filters the impurity of filter greater than 5 μ m.The oil filter must regularly be cleaned and guaranteed that oily filtering is clean.This oil-sealing device is used three-stage filtration, and one-level is a coarse oil screen, and back two-stage is the essential oil filter.8. control system: the oil-sealing device control system adopts AC220V, PLC control and independent control to combine, by the PLC controller, and compositions such as each switch, emergency stop button, relay, tutorial light accordingly.PLC is the control engine starting motor, starting electromagnetic fuel valve, and the parking solenoid valve can carry out the automatic control of work according to motor false start program, and PLC also controls the work of oil sealing system oil pump, heater, solenoid valve simultaneously.Perhaps direct current oil pump, fuel feeding solenoid valve are controlled separately through PLC, no sequential requirement, and lubricating oil heater can also be controlled separately with temperature controller through PLC control.
7, concrete oil sealing working procedure:
(1) preparation of oil sources car and oil-sealing device: oil sources car and oil-sealing device should carry out preceding completion at oil sealing, a, connection system general power; B, connection oil tank heater are heated to predetermined temperature with lubricating oil; C, starting lubricating oil pump let lubricating oil be full of the pipeline of oil sealing system and the pressure of adjusting system lubricating oil; D, connection system solenoid valve are by the lubricating oil flow direction engine.
(2) false start of motor: a, press starting button, connect motor series connection starting system, make the actuating motor low-speed running, connect starting electromagnetic fuel valve; B, connect the engine cut-off solenoid valve after 1 second; C, connect motor full-voltage starting system after 1.5 seconds, make the actuating motor full-speed operation; D, break off starting electromagnetic fuel valve after 7 seconds; E, actuating motor disconnection parking solenoid valve disconnection after 15 seconds.
(3) system control panel: be equipped with on the control panel: charging source switch, PLC run switch, false start switch, fuel valve tutorial light, parking valve tutorial light, heater button, direct current pump switch, electromagnetic valve switch, voltmeter, ammeter, charge oil pressure table, tap changer, emergency stop button etc.
8, electrical system: electrical system is for outside the AC220V Alternating Current Power Supply; Other; Direct current oil pump, fuel feeding solenoid valve, engine starting motor, starting electromagnetic fuel valve, parking solenoid valve, contactor, tutorial light are DC27V direct current supply, so system power supply is that power of alterating and direct current is with using.The DC27V DC electrical source converts the DC27V direct current through AC220V electric main power supply into through silicon rectifier.
Adopt the beneficial effect of present technique scheme: this special use oil-sealing device for portable simple to operate, easy to maintenance, overcome original installation oil sealing, unsafe factor in the installation unloading process; And the engine life that consumes helicopter; Increased very big burden for storehouse management and maintenance work outside the venue; Become aerial oil sealing into the ground surface platform oil sealing, time saving and energy saving, practice thrift maintenance cost greatly.
Description of drawings
Fig. 1 a, Fig. 1 b, Fig. 1 c are special-purpose oil-sealing device of the present invention three schematic representation of car platform to the aviation engine oil encapsulation method;
Among the figure: 1-motor, 1a-motor head, 1b-engines tail, 2-fixing frame, 3-car body supporting frame, 4-car platform, 5-control box.
Fig. 2 is the oily former car oil supply system structural representation of the special-purpose oil-sealing device of usefulness of the present invention to the aviation engine oil encapsulation method;
Among the figure: 21-fuel tank, 22A-manual ball valve, 22B-manual ball valve, 22C-manual ball valve, 23-pressure regulator valve, 24-safety overflow valve, 25-27V direct current oil pump, the filter of 26A-10 μ m oil, the filter of 26B-7 μ m oil, 27-pressure gauge, 28-solenoid valve, 29-metallic hose.
Fig. 3 is that the special-purpose oil-sealing device of usefulness of the present invention is to aviation engine oil encapsulation method oil sealing operational flowchart.
Embodiment
The special-purpose oil-sealing device of usefulness of the present invention is to the method for aeroengine oil sealing, and the contrast accompanying drawing remakes brief description: A И-9 aeroengine is dismantled the oil sealing of disembarking on the ground stand; Step: pull down engine fuel oil filtering wash clean, original position is installed back; Fill with special-purpose oil sealing sump 21 with new lubricating oil, lubricating oil is heated to 40-50 ℃; The oil-sealing device oil hose is connected on the engine fuel oil system oil sealing mouth, shuts fuel shut-off valve, connects supplementary equipment and engine fuel pump governor, deflates; Connect the special-purpose oil-sealing device of supply engine lubricating oil, let it flow through supplementary equipment, till lubricating oil pressure occurring; Break off means of deflation, motor is carried out twice false start, each blanking time was greater than 3 minutes; The oil hose and the oil sealing ozzle of oil-sealing device are broken off, from the motor oil case, emit lubricating oil.
The oil sealing medium is homemade HP-8B lubricating oil, requires 1 gram lubricating oil KOH amount: 4.0-5.5; Setting temperature is not higher than-60 ℃; Anhydrous, alkali, acid and mechanical admixture, oil-sealing device oil pressure: 0.06-0.17Mpa, flow:>=1.5L/min, volume of fuel tank 27L, lubricating oil granularity :≤7 μ m.
Special-purpose oil-sealing device is the travelling car formula, and it comprises fuel tank 21 and pipeline road valve, pressure gauge 27, oil filter 26; Control system, electrical system is formed.
Fixed is carried out oil sealing on car body, comprise aeroengine 1 and fixing frame 2 on the car body; In the oil-sealing device control cabinet 5 that oil supply system, control system, electrical system are formed.4 five parts of car platform; Carrying vehicle adopts four-wheel to support when off working state, can fold fixing support rack 3 with 4 in working order and support, and aeroengine 1 side direction on car platform 4 is fixed; Car platform 4 is provided with to engine centerline inclination fuel outlet; Reclaim discarded lubricating oil to concentrate, the oil supply system of oil-sealing device, control system, electrical system are concentrated and are located in the control cabinet case of special-purpose oil-sealing device, can be the fixed portable oil-sealing device that also can be.
Special-purpose oil-sealing device on the oil sources car is made up of fuel tank 21, oil feed pump 25, lubricating oil heater, oil pipe and corresponding valve, electrical system, control system; During oiling; Cleaning lubricating oil suction hose in the oil drum is got into fuel tank 21 through manual ball valve 22C, 27V direct current oil pump 25, oil filter 26A, 26B, safety overflow valve 24 and pressure regulator valve 23, and this moment, manual ball valve 22A and 22B, solenoid valve 23 all were in closed condition; When draining the oil, open manual fuel tap 22B and emit lubricating oil; During oil sealing, open manual fuel tap 22A, the lubricating oil in the fuel tank 21, gets into motor 1 through solenoid valve 26 and makes oil pressure keep stable by pressure regulator valve 23 and safety overflow valve 24 adjusting supply pressures through twice oil filter through 27V direct current oil pump 25.
The oil circuit caliber of oil supply system: the pipeline external diameter is 12mm behind the pump, and wall thickness is the Stainless Steel Tube of 1mm, and the pipeline external diameter is 16mm before the pump, and thick is the 1mm Stainless Steel Tube; Warp was the 10mm flexible pipe in the metallic hose of external motor used.
Oil-sealing device fuel tank 21 volumes are that 27L is processed by stainless steel; Fuel tank is provided with oil filler, oil outlet, sewage draining exit, relief opening, fuel tank and 220V/2000W is housed exchanges heater; Be presented on the control panel with numeral by special-purpose controller control oil temperature; Also be provided with thermal resistor on the fuel tank, liquid level is put display unit.
Oil pump 25 usefulness DC27V direct current oil pumps, charge oil pressure is 0.12-0.22Mpa, flow is 4L/min.
Oil purifier adopts the smart filter of one-level coarse filtration two-stage, thick oil filter 26A grade of filtration 8 μ m, 10 μ m, and essential oil filter 26B filters granularity and impurity greater than 5 μ m.
Motor false start: press starting button, connect motor series connection starting system, make the actuating motor low-speed running; Connect starting electromagnetic fuel valve; Connect the engine cut-off solenoid valve after 1 second, connect motor full-voltage starting system after 1.5 seconds and make the actuating motor full-speed operation, break off starting electromagnetic fuel valve after 7 seconds; Rear motor broke off in 15 seconds, and the parking solenoid valve breaks off.
Special-purpose oil-sealing device is provided with control panel and electrical system; Control panel is provided with total power switch, PLC run switch, false start switch, fuel valve tutorial light, parking valve tutorial light, heater button, direct current pump switch, electromagnetic valve switch, voltmeter, ammeter, charge oil pressure table, tap changer, emergency stop button; Electrical system is supplied power with alternating direct-current simultaneously; Direct current oil pump, fuel feeding solenoid valve, engine starting motor, starting electromagnetic fuel valve, parking solenoid valve, contactor, tutorial light are DC27V direct current supply; DC electrical source becomes direct current through the 220V Ac through silicon rectifier, and fuel tank heater is used ac power supply.
Claims (11)
1. one kind with the method for special-purpose oil-sealing device to the aeroengine oil sealing, it is characterized in that: A И-9 aeroengine is dismantled the oil sealing of disembarking on the ground stand; Step: pull down engine fuel oil filtering wash clean, original position is installed back; Fill with special-purpose oil sealing sump (21) with new lubricating oil, lubricating oil is heated to 40-50 ℃; The oil-sealing device oil hose is connected on the engine fuel oil system oil sealing mouth, closes fuel shut-off valve, connects supplementary equipment and engine fuel pump governor, deflates; Connect the special-purpose oil-sealing device of supply engine lubricating oil, let it flow through supplementary equipment, till lubricating oil pressure occurring; Break off means of deflation, motor is carried out twice false start, each blanking time was greater than 3 minutes; The oil hose and the oil sealing ozzle of oil-sealing device are broken off, from the motor oil case, emit lubricating oil.
2. according to the special-purpose oil-sealing device of claim 1 method to the aeroengine oil sealing, it is characterized in that: the oil sealing medium is homemade HP-8B lubricating oil, requires 1 gram lubricating oil KOH amount: 4.0-5.5; Setting temperature is not higher than-60 ℃; Anhydrous, alkali, acid and mechanical admixture, oil-sealing device oil pressure: 0.06-0.17Mpa, flow:>=1.5L/min, volume of fuel tank 27L, lubricating oil granularity :≤7 μ m.
3. according to the special-purpose oil-sealing device of claim 1 method to the aeroengine oil sealing; It is characterized in that: use special-purpose oil-sealing device to be travelling car formula or fixed; It comprises fuel tank (21) and pipeline road valve, pressure gauge (27), oil filter (26) control system, and electrical system is formed.
4. according to the special-purpose oil-sealing device of claim 1 method to the aeroengine oil sealing; It is characterized in that: fixed is carried out oil sealing on car body; Comprise (4) five parts of oil sealing car control cabinet (5), car platform that aeroengine (1) and fixing frame (2), oil supply system, control system, electrical system are formed on the car body; Carrying vehicle adopts four-wheel to support when off working state; Can fold fixing support rack (3) with 4 in working order and support, aeroengine (1) goes up side direction at car platform (4) and fixes, and car platform (4) is provided with the fuel outlet to the engine centerline inclination; Reclaim discarded lubricating oil to concentrate, the oil supply system of oil-sealing device, control system, electrical system are concentrated and are located in the control cabinet case of special-purpose oil-sealing device.
5. according to the special-purpose oil-sealing device of claim 1 method to the aeroengine oil sealing; It is characterized in that: the special-purpose oil-sealing device on the oil sources car is made up of fuel tank (21), oil feed pump (25), lubricating oil heater, oil pipe and corresponding valve, electrical system, control system; During oiling; Cleaning lubricating oil suction hose in the oil drum is got into fuel tank (21) through manual ball valve (22C), 27V direct current oil pump (25), oil filter (26A, 26B), safety overflow valve (24) and pressure regulator valve (23), and manual ball valve (22A and 22B), solenoid valve (23) all are in closed condition at this moment; When draining the oil, open manual fuel tap (22B) and emit lubricating oil; During oil sealing; Open manual fuel tap (22A); Lubricating oil in the fuel tank (21), gets into motor (1) through solenoid valve (26) and makes oil pressure keep stable by pressure regulator valve (23) and safety overflow valve (24) adjusting supply pressure through twice oil filter through 27V direct current oil pump (25).
6. according to the special-purpose oil-sealing device of claim 1 or 5 method to the aeroengine oil sealing; It is characterized in that: the oil circuit caliber of oil supply system: the pipeline external diameter is 12mm behind the pump; Wall thickness is the Stainless Steel Tube of 1mm, and the pipeline external diameter is 16mm before the pump, and thick is the 1mm Stainless Steel Tube; Warp was the 10mm flexible pipe in the metallic hose of external motor used.
7. according to the special-purpose oil-sealing device of claim 1 or 5 method to the aeroengine oil sealing; It is characterized in that: oil-sealing device fuel tank (21) volume is that 27L is processed by stainless steel; Fuel tank is provided with oil filler, oil outlet, sewage draining exit, relief opening, fuel tank and 220V/2000W is housed exchanges heater; Be presented on the control panel with numeral by special-purpose controller control oil temperature, also be provided with thermal resistor on the fuel tank, liquid level is put display unit.
8. according to the special-purpose oil-sealing device of claim 1 or 5 method to the aeroengine oil sealing, it is characterized in that: oil pump (25) is with DC27V direct current oil pump, and charge oil pressure is 0.12-0.22Mpa, and flow is 4L/min.
9. according to the special-purpose oil-sealing device of claim 1 or 5 method to the aeroengine oil sealing, it is characterized in that: oil purifier adopts the filter of one-level coarse filtration two-stage essential oil, coarse filtration (26A) grade of filtration 8 μ m, 10 μ m, and the granularity impurity greater than 5 μ m is filtered in essential oil filter (26B).
10. according to the special-purpose oil-sealing device of claim 1 method, it is characterized in that: the motor false start: press starting button, connect motor series connection starting system the aeroengine oil sealing; Make the actuating motor low-speed running, connect starting electromagnetic fuel valve, connect the engine cut-off solenoid valve after 1 second; 1.5 a second back is connected motor full-voltage starting system and is made the actuating motor full-speed operation; Break off starting electromagnetic fuel valve after 7 seconds, rear motor broke off in 15 seconds, and the parking solenoid valve breaks off.
11. according to the special-purpose oil-sealing device of claim 1 method to the aeroengine oil sealing, it is characterized in that: special-purpose oil-sealing device is provided with control panel and electrical system; Control panel is provided with total power switch, PLC run switch, false start switch, fuel valve tutorial light, parking valve tutorial light, heater button, direct current pump switch, electromagnetic valve switch, voltmeter, ammeter, charge oil pressure table, tap changer, emergency stop button; Electrical system is supplied power with alternating direct-current simultaneously; Direct current oil pump, fuel feeding solenoid valve, engine starting motor, starting electromagnetic fuel valve, parking solenoid valve, contactor, tutorial light are DC27V direct current supply; DC electrical source becomes direct current through the 220V Ac through silicon rectifier, and fuel tank heater is used ac power supply.
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| CN102720598A (en) * | 2012-06-25 | 2012-10-10 | 中国南方航空工业(集团)有限公司 | Ground oil sealing device |
| CN103573417A (en) * | 2013-11-11 | 2014-02-12 | 沈阳黎明航空发动机(集团)有限责任公司 | PLC (Programmable Logic Controller) control method of aero-engine oil sealing/unsealing |
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| CN103968045B (en) * | 2013-02-05 | 2015-12-23 | 珠海保税区摩天宇航空发动机维修有限公司 | Engine accessory gear box oil sealing method |
| CN103573417A (en) * | 2013-11-11 | 2014-02-12 | 沈阳黎明航空发动机(集团)有限责任公司 | PLC (Programmable Logic Controller) control method of aero-engine oil sealing/unsealing |
| CN103573417B (en) * | 2013-11-11 | 2015-12-02 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of PLC controlling method of aeroengine oil sealing/unpacking |
| CN106401750B (en) * | 2016-08-31 | 2018-05-08 | 中国南方航空工业(集团)有限公司 | Oil sealing equipment |
| CN106401750A (en) * | 2016-08-31 | 2017-02-15 | 中国南方航空工业(集团)有限公司 | Oil sealing equipment |
| CN106401751A (en) * | 2016-08-31 | 2017-02-15 | 中国南方航空工业(集团)有限公司 | Engine oil seal table and engine out-field oil seal method |
| CN106945590A (en) * | 2017-04-27 | 2017-07-14 | 沈阳飞机工业（集团）有限公司 | A kind of oil-sealing arrangement of cable wire part |
| CN107188107A (en) * | 2017-06-02 | 2017-09-22 | 中国航发南方工业有限公司 | Engine oil seals car and the oil sealing method carried out using this oil seal vehicle |
| CN108150823A (en) * | 2017-11-21 | 2018-06-12 | 北京动力机械研究所 | Aircraft starts the long-term storage method of fuel oil with fanjet |
| CN108150823B (en) * | 2017-11-21 | 2019-11-15 | 北京动力机械研究所 | Aircraft starts the long-term storage method of fuel oil with fanjet |
| CN110410218A (en) * | 2019-07-18 | 2019-11-05 | 上海航空机械有限公司 | A kind of helicopter engine complex seal device control system |
| CN110406695A (en) * | 2019-07-22 | 2019-11-05 | 上海航空机械有限公司 | A kind of helicopter engine complex seal device operating system |
| CN114215624A (en) * | 2021-11-29 | 2022-03-22 | 中国航发沈阳发动机研究所 | Oil supply throttling device for cold running of engine and starting before starter is disengaged |
| CN114215624B (en) * | 2021-11-29 | 2023-02-28 | 中国航发沈阳发动机研究所 | Oil supply throttling device for cold running of engine and starting before starter is disengaged |
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Application publication date: 20120509 |